If 291g of a compound is added to 1.02 kg of water to increase the boiling point by 5.77°C, what is the molar mass of the added compound? (Assume a van’t Hoff factor of 1.)

a. 31.1 g/mol

b. 30.3 g/mol

c. 28.5 g/mol

d. 18.3 g/mol

e. 25.3 g/mol